24 Hours Resurrection of the Villainess

The warrior Erquanna awakens inside a coffin, only to hear people mocking her supposed death. When she suddenly opens her eyes, she discovers that she is no longer in her own body but trapped inside the fragile form of Erne de Medina, an infamous fool from the empire. She soon learns that Erne made a dangerous deal with a demon before dying, and now Erquanna must complete the contract in her place. To save her soul, she has to make one of the three most powerful men in the empire fall in love with her — while genuinely returning those feelings before her time runs out. If she fails, the demon will claim her soul as payment.